US3395752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Baseboard heat exchanger apparatus
Assignee: Trane US Inc
•
Filing: 1966-06-10
•
Granted: 1968-08-06
•
Expires: 1986-06-10
Abstract
No abstract record available.
Inventors
- 👤 Andrew J Fowell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:25
CPC Classifications
F; F24; F24D; F24D19/00; F24D19/008; F24D19/0087; F24D19/02; F24D19/04; F28; F28D; F28D1/00; F28D1/02; F28D1/0233; F28D1/024; Y; Y02; Y02B; Y02B30/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US929129A
Cited
US2655310A
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US2876690A
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US2822674A
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US2945360A
Cited
GB905473A
Cited
US3000192A
Cited
GB954657A
Cited
US3147368A
Cited
US3050958A
Cited
US3200609A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-06 | 1972-02-05 | 1972-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-06 | 1976-02-05 | 1976-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-06 | 1980-02-05 | 1980-08-06 | $7700.00 | Window Closed / Lapsed |